$ array=(one two three fou five)$ echo${array[@]}
one two three fou five
$ echo${array[@]#o}# 左边开始最短的匹配
ne two three fou five
$ echo${array[@]#fo}
one two three u five
$ echo${array[@]%t**e}
one two fou five
$ echo${array[@]%%t*e}
one two fou five